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Author Topic: EML keeps coming on  (Read 1026 times)

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vegasgo

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EML keeps coming on
« on: 11 December 2008, 21:35:23 »

Initial Tech 2 showed Lambda sensor so had it changed, but shortly after it came back on again. Had it re-scanned and the sensor showed to be working perfectly. Had the codes cleared but two days later back on came the EML. Any suggestions? thanks.
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TheBoy

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Re: EML keeps coming on
« Reply #1 on: 11 December 2008, 21:36:59 »

What codes, what engine?
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Albatross

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Re: EML keeps coming on
« Reply #2 on: 11 December 2008, 21:38:06 »

Please update your profile with your car's model and year. This will help contextualise the advice and diagnosis as the different trim levels, engine sizes and ages of the Omega can make a difference.
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vegasgo

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Re: EML keeps coming on
« Reply #3 on: 11 December 2008, 22:23:47 »

2.2 51 REG AUTO. Sorry, don't know the code but was for 02 sensor.
« Last Edit: 11 December 2008, 22:26:36 by vegasgo »
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vegasgo

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Re: EML keeps coming on
« Reply #4 on: 12 December 2008, 10:15:24 »

I remember now - Tech 2 said 02 sensor not present
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Richard007

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Re: EML keeps coming on
« Reply #5 on: 12 December 2008, 13:27:55 »

I have exactly he same vexing problem with my EML described by Vegasgo. I have a 2001 Vauxhall Omega 3.2 MV6 which until recently had never given me a moment’s trouble. Three months ago, the Bosch Engine Control Unit (engine management) warning light came on. Since then, three different Vauxhall dealerships have charged me a total of over £400 to test the system on their ‘Tech-2’ computer diagnostic machines and subsequently cleaned and then replaced its O2 and Lambda sensors (after diagnostic tests highlighted their fault codes). But each time, after running the car for another 100 miles or so, the warning light has re-appeared.

Now my local Vauxhall dealer, Evans Halshaw in Wolverhampton, says the only solution is to replace the ECU with a new unit costing £1,000 (parts and labour) which is a lot of money to spend on an old car. I rang Vauxhall’s customer service department who were useless and just told me to go back to my local dealer! Meanwhile, several car breakers yards have offered me salvaged ECUs from scrapped 3.2 Omegas for prices between £35 and £300, but my Vauxhall dealership says that unless any ‘used’ ECU comes with its original immobilisation and programming codes, it will not work in my car.  And, to confuse the picture even further, when I sought independent advice through the Internet, several auto electronic re-programming firms offered to repair my existing ECU for prices ranging from £40 to £200 – but said I’d have to get it removed from my car and sent to them – and there would be no guarantee the ECU warning light wouldn’t still come back on!

Despite the constant presence of the ECU warning light and slightly reduced fuel economy, the car drives perfectly well and, since it’s done only 67,000 miles and is otherwise in mint condition, I don't want to get rid of it.  Does ANYONE have a suggestion as to the best way forward? Surely there must be a way of getting this ECU/EML problem fixed cheaply but reliably!!?
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RobG

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Re: EML keeps coming on
« Reply #6 on: 12 December 2008, 13:31:51 »

Richard, Check the codes yourself. Use this link :y

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687
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Entwood

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Re: EML keeps coming on
« Reply #7 on: 12 December 2008, 14:49:22 »

Richard  ... :)

Longish answer in the welcome thread .. :)
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feeutfo

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Re: EML keeps coming on
« Reply #8 on: 12 December 2008, 18:49:23 »

hi Richard, welcome to oof.
Very sorry to hear your story, but tbh not suprised frankly. Fortunately you have now come the right place. There are people on here that have forgotten more about Omegas than most dealers will learn in a life time.

 I would suggest you forget all you have been told by vx and start again with the pedal trick as listed in the link above, note, it will only read the engine ecu but thats all you need at this stage . The car will flash out the codes for you for free. Post the codes on here and we will be able to guide you through. Dont worry, failing that, you live fairly close to some tech 2 owners who are far more capable than any dealer. And if you need a new ecu ill eat my rather hat.

The 3.2 and 2.6 do suffer with a pre cat issue that is of no real concern, ill bet a pound on that or a fuel trim code.
« Last Edit: 12 December 2008, 18:51:26 by chrisgixer »
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webby23

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Re: EML keeps coming on
« Reply #9 on: 12 December 2008, 18:52:23 »

I have 0170 and 0173 fuel trim malfunction both banks, car drives perfectly....what can I do? Any idea?

Sorry if this looks like a hijack but it isnt. :)
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